<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script>
      //声明变量
      var i
      //赋值
      i = 100
      //打印输出
      console.log(i)
    </script>

    <script>
      console.log('bbbb')
    </script>
  </head>
  <body>
    <h1>我的第一个js</h1>
    <button onclick="console.log('aaaa')">行内调用</button>
  </body>
</html>
